Car enthusiasts will love these replica automobiles that work as fully functional computer mice. They are amazingly realistic with smooth lines, colorful details, glossy finish and working LED headlights! Each comes with a unique VIN number, allowing owners to register, receive the title and activate the 6-month product warranty. PC and Mac compatible via USB port. Four Door Media is a specialized electronic products and entertainment company that creates, manufacturers, markets and distributes computer based products and accessories that entertain, promote and educate. The company was founded with a focus on marketing products that relate to the automotive industry and appeal to consumers across a wide range of market segments and across the globe.